Between the beginning and end of construction on the Berlin Philharmonie, from 1960 to 1963, a wall was built to cut the German capital in two. Though it stood just a few hundred meters from the border between East and West Berlin, the Philharmonie and all the glorious music performed within its walls remained off limits to those in the city's eastern half—until the Berlin Wall finally fell on November 9, 1989.

Three days later, Daniel Barenboim led the Berliner Philharmoniker in a free concert exclusively for residents of the former East Berlin, who simply had to show an ID card to get in. It was the first time in the West for many, who began lining up at 4 AM to hear Barenboim perform Beethoven’s Piano Concerto No. 1, and the orchestra’s flawless rendition of Beethoven’s Seventh Symphony. The choice was “purely practical,” explained Barenboim in 2009 (they’d been recording the work in Berlin when the wall fall), but it is hard to imagine a more fitting choice for the moment: with the triumphant heroism of the first and fourth movements, and the heart-rending poignancy of the second, it is easy to see why there were so few dry eyes in the house.

This documentary, thirty years on from the historic event, features deeply moving footage of the concert, as well as remembrances by Barenboim, members of the Berliner Philharmoniker, concert attendees, and the first mayor of a unified Berlin, Walter Momper.